Preparation of mullite based ceramics from clay–kaolin waste mixtures

dc.creatorAlves, Hugo Plínio de Andrade
dc.creatorSilva, Jaquelígia Brito da
dc.creatorCampos, Lizsandra Fernanda Araújo
dc.creatorTorres, Sandro Marden
dc.creatorDutra, Ricardo Peixoto Suassuna
dc.creatorMacedo, Daniel Araújo de
dc.date2020-10-22T19:04:22Z
dc.date2020-10-22T19:04:22Z
dc.date2016-12
dc.identifierALVES, H.P.A.; SILVA, J.B.; CAMPOS, L. F.A.; TORRES, S. M.; DUTRA, R. P. S.; MACEDO, D. A.. Preparation of mullite based ceramics from clay-kaolin waste mixtures. Ceramics International, v. 42, p. 19086-19090, 2016. Disponível em: https://www.sciencedirect.com/science/article/pii/S0272884216316005. Acesso em: 12 out. 2020. https://doi.org/10.1016/j.ceramint.2016.09.068
dc.identifier0272-8842
dc.identifierhttps://repositorio.ufrn.br/handle/123456789/30484
dc.identifier10.1016/j.ceramint.2016.09.068
dc.descriptionMullite based ceramics were prepared by reaction sintering of mixtures containing kaolin clay and kaolin waste. Phase composition, apparent density, apparent porosity, and modulus of rupture were investigated as a function of sintering temperature and kaolin waste content (varied from zero to 50 wt%). The sintering shrinkage behavior was monitored by dilatometry. The results showed that samples derived from formulations containing kaolin waste were composed of acicular mullite and glass phases at 1500 °C. Ceramic bodies prepared with kaolin waste (25 or 50 wt%) showed better physico-mechanical properties (for sintering up to 1400 °C) than the ones of pure kaolin clay. The evidence seems to suggest that this behavior can be due to a liquid phase assisted sintering mechanism associated with a content of mica ranging from 13.3 to 22.4 wt%
dc.languageen
dc.publisherElsevier
dc.subjectPowders: solid state reaction
dc.subjectSintering
dc.subjectMullite
dc.subjectKaolin waste
dc.titlePreparation of mullite based ceramics from clay–kaolin waste mixtures
dc.typearticle


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